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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: DTITubeSpatialObject.cxx
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
// Software Guide : BeginLatex
//
// \index{itk::DTITubeSpatialObject}
//
// \doxygen{DTITubeSpatialObject} derives from \doxygen{TubeSpatialObject}.
// It represents a fiber tracts from Diffusion Tensor Imaging.
// A DTITubeSpatialObject is described as a list of centerline points which
// have a position, a radius, normals, the fractional anisotropy (FA) value, the ADC value,
// the geodesic anisotropy (GA) value, the eigenvalues and vectors as well as the full
// tensor matrix.
//
// Let's start by including the appropriate header file.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
#include "itkDTITubeSpatialObject.h"
#include "itkDTITubeSpatialObjectPoint.h"
// Software Guide : EndCodeSnippet
int main( int , char *[] )
{
// Software Guide : BeginLatex
//
// DTITubeSpatialObject is templated over the dimension of the space. A
// DTITubeSpatialObject contains a list of DTITubeSpatialObjectPoints.
//
// First we define some type definitions and we create the tube.
//
// Software Guide : EndLatex
unsigned int i;
// Software Guide : BeginCodeSnippet
typedef itk::DTITubeSpatialObject<3> DTITubeType;
typedef itk::DTITubeSpatialObjectPoint<3> DTITubePointType;
DTITubeType::Pointer dtiTube = DTITubeType::New();
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// We create a point list and we set:
// \begin{enumerate}
// \item The position of each point in the local coordinate system using the
// \code{SetPosition()} method.
// \item The radius of the tube at this position using \code{SetRadius()}.
// \item The FA value using \code{AddField(DTITubePointType::FA)}.
// \item The ADC value using \code{AddField(DTITubePointType::ADC)}.
// \item The GA value using \code{AddField(DTITubePointType::GA)}.
// \item The full tensor matrix supposed to be symmetric definite positive value using \code{SetTensorMatrix()}.
// \item The color of the point is set to red in our case.
// \end{enumerate}
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
DTITubeType::PointListType list;
for( i=0; i<5; i++)
{
DTITubePointType p;
p.SetPosition(i,i+1,i+2);
p.SetRadius(1);
p.AddField(DTITubePointType::FA,i);
p.AddField(DTITubePointType::ADC,2*i);
p.AddField(DTITubePointType::GA,3*i);
p.AddField("Lambda1",4*i);
p.AddField("Lambda2",5*i);
p.AddField("Lambda3",6*i);
float* v = new float[6];
for(unsigned int k=0;k<6;k++)
{
v[k] = k;
}
p.SetTensorMatrix(v);
delete v;
p.SetColor(1,0,0,1);
list.push_back(p);
}
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Next, we create the tube and set its name using \code{SetName()}. We also
// set its identification number with \code{SetId()} and, at the end, we add
// the list of points previously created.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
dtiTube->GetProperty()->SetName("DTITube");
dtiTube->SetId(1);
dtiTube->SetPoints(list);
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// The \code{GetPoints()} method return a reference to the internal list of
// points of the object.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
DTITubeType::PointListType pointList = dtiTube->GetPoints();
std::cout << "Number of points representing the fiber tract: ";
std::cout << pointList.size() << std::endl;
// Software Guide : EndCodeSnippet
// Software Guide : BeginLatex
//
// Then we can access the points using STL iterators. \code{GetPosition()}
// and \code{GetColor()} functions return respectively the position and the
// color of the point.
//
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
DTITubeType::PointListType::const_iterator it = dtiTube->GetPoints().begin();
i=0;
while(it != dtiTube->GetPoints().end())
{
std::cout << std::endl;
std::cout << "Point #" << i << std::endl;
std::cout << "Position: " << (*it).GetPosition() << std::endl;
std::cout << "Radius: " << (*it).GetRadius() << std::endl;
std::cout << "FA: " << (*it).GetField(DTITubePointType::FA) << std::endl;
std::cout << "ADC: " << (*it).GetField(DTITubePointType::ADC) << std::endl;
std::cout << "GA: " << (*it).GetField(DTITubePointType::GA) << std::endl;
std::cout << "Lambda1: " << (*it).GetField("Lambda1") << std::endl;
std::cout << "Lambda2: " << (*it).GetField("Lambda2") << std::endl;
std::cout << "Lambda3: " << (*it).GetField("Lambda3") << std::endl;
std::cout << "TensorMatrix: " << (*it).GetTensorMatrix()[0] << " : ";
std::cout << (*it).GetTensorMatrix()[1] << " : ";
std::cout << (*it).GetTensorMatrix()[2] << " : ";
std::cout << (*it).GetTensorMatrix()[3] << " : ";
std::cout << (*it).GetTensorMatrix()[4] << " : ";
std::cout << (*it).GetTensorMatrix()[5] << std::endl;
std::cout << "Color = " << (*it).GetColor() << std::endl;
it++;
i++;
}
// Software Guide : EndCodeSnippet
return 0;
}
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